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La Josefa, Mina

Producer in La Rioja, Argentina with commodities Tungsten, Molybdenum
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Commodities
  6. Alteration
  7. Host and associated rocks
  8. Nearby scientific data
  9. Geologic structures
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10107562
MRDS ID AR00275
Record type Site
Current site name La Josefa, Mina

Geographic coordinates

Geographic coordinates: -67.54945, -29.59745 (WGS84)
Relative position 75 KM SSW DE CHILECITO

Site location context

Political divisions (FIPS codes)

La Rioja(province)

Argentina(country)

South America(continent)

Land(continent)

Geographic areas

Country State
Argentina La Rioja

Comments on the location information

  • ACCESO BUENO, MANO DE OBRA DISPONIBLE, CLIMA CONTINENTAL SEMIDESERTICO

Commodities

Commodity Importance
Tungsten Critical Primary
Molybdenum Tertiary

Comments on the commodity information

  • MINERALIZACION IRREGULAR EN VETAS DE CUARZO, CON SECTORES DE MAYOR CONCENTRACION SIN DISTRIBUCION DEFINIDA. MINERALIZACION PRIMARIA DE WOLFRAMITA EN CRISTALES TABULARES O AGREGADOS RADIALES. SCHEELITA EN AGREGADOS MENORES O REEMPLAZO DE WOLFRAMITA. IMPREGNACIONES DE MOLIBDENITA

Alteration

  • (Local) Desferrizacion

Analytical data

Result WO3 1.5%

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Dacite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Late Devonian
  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Granito Nunorco;Porfidos Daciticos
    Rock description Granito Nunorco;Porfidos Daciticos
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -67.54945, -29.59745
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Fallas Directas De Gran Rechazo
Type of structure Local
Structure description Fallas Directas N-S, Inclinacion Ene. Falls N-S Inclinacion Wsw

Ore body information

  • General form VETIFORME, RELLENO DE FISURA
    Strike N 45W
    Dip 69-77 NE

Controls for ore emplacement

  • Fracturas

Comments on the geologic information

  • SOBRE LOS GRANITOS APARECEN SEDIMENTITAS ROJAS DEL PERMICO

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Significant No
Discovery year 1956
Discoverer Quinteros, J.S
Year of first production 1956
Year of last production 1979
Production years PRODUCCION DISCONTINUA

Mining district

District name Vichigasta

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Idem
  • Type Owner
    Owner Musso, F - Amatte, J. Mitre 398

Production statistics

  • Year 1971
    Material WO3
    Accuracy Estimate
    Description Ap_Grade: ^65% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace WO3 Tungsten Tungsten 65wt-pct
  • Year 1977
    Material WO3
    Accuracy Estimate
    Description Ap_Grade: ^65% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace WO3 Tungsten Tungsten 65wt-pct
  • Year 1979
    Period 1967-79
    Material WO3
    Accuracy Estimate
    Description Cp_Grade: ^65% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace WO3 Tungsten Tungsten 65wt-pct
  • Year 1979
    Material WO3
    Accuracy Estimate
    Description Ap_Grade: ^65% Wo3
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Trace WO3 Tungsten Tungsten 65wt-pct

Comments on the reserve resource information

  • RECURSOS: 2000TN
  • RESERVAS TOTALES: 6000 TN
  • RESERVAS: 4000 TN

Workings at the site

  • Type of workings Surface/Underground
    Area 6HA

Comments on development

  • UN PIQUE DE 70M Y LABORES SOBRE VETA SUMANDO 600M. INTENSO PIRQUINEO ENTRE NIVELES ; EXPL$: 0.07 ; ECON.COM: SE PROYECTA EXPLOTACION POR REALCE CIRCANDO LA VETA, CON EXTRACCION MECANIZADA. MAQUINQRIA EXISTENTE: 1 GRUPO ELECTROGENO, 1 MOTOCOMPRESOR, 1 MOTOR 50HP, 2 CHANCADORAS, ETC

Reference information

Bibliographic references

  • Deposit

    EVALUACION FONEM 1986 CARPETA F-0002-00. DIREC.NAC.MINERIA INEDITO

  • Production

    EVALUACION FONEM 1986

General comments

Subject category Comment text
Deposit RECOMENDACIONES PARA DESARROLLO: 1- ANALIZAR LOS METODOS DE EXPLOTACION PARA DETERMINAR EL DE MENOR COSTO Y DILUCION. 2- DETERMINAR CONTINUIDAD DE MINERALIZACION EN PROFUNDIDAD. 3- EXPLORAR OTRAS VETAS PARA AMPLIAR RESERVAS. ADEMAS REALIZAR DESTAPE DEL PIQUE NETRE COTA 49 Y 70 , REMUESTREAR LABORES Y REALIZAR ESTUDIO METALURGICO PARA DEFINIR MODELO ECONOMICO APROPIADO ; INFO.SRC : 2 UNPUB REPT
Deposit VETA JOSEFA: 100*0.4*90M. VETA SUR: 120*0.5*30M

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1986 Marcos, O Direccion Nacional de Mineria, Argentina
Updater 01-MAR-1993 Martinez, Hector Direccion Nacional de Mineria, Argentina

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

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